003+10-04-11+-+Chapter+2

003+10-04-11+-+Chapter+2 - Chapter 2 Hardware Basics:...

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Slide 1 Chapter 2 Hardware Basics: Inside the Box
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Slide 2 PC Basics CD-ROM drive diskette drive Keyboard Monitor Mouse
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Slide 3 Chapter 2 What Computers Do Basic Components of a Computer  Input devices  Keyboards and pointing devices  (mouse) Output devices  Display or video monitor Printer Speakers CPU (Central Processing Unit) “Brain” of the computer Slide 3
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Slide 4 PC Basics PC Hardware Basics Built around a tiny microprocessor that controls the workings of the system This central processing unit , or CPU , is usually housed on the motherboard Serves as command central for the entire computer system The CPU is the brains of the computer Controls the operation of the core computer components Peripheral devices (peripherals): external devices connected via cables (or wirelessly) to the system unit
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Slide 5 PC Basics System unit includes built-in memory ( RAM) and a hard disk CPU uses RAM memory for instant access to information Hard disk serves as a longer-term storage device Stores large quantities of information A permanent fixture in the system unit
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Slide 6 PC Basics Storage Devices Diskette drive (also known as a floppy disk drive ) enables the computer to store small amounts of information on pocket-sized, plastic-covered magnetic diskettes Note: these are rapidly becoming extinct Internal drives: included in the system unit External drives: attached to the system unit via cables A PC system might include: An external hard disk for additional storage A USB keychain flash memory device for accessing small amounts of storage Portable storage that can be shuttled easily between multiple PCs DVD/CD-RW drive for reading and writing CDs and DVDs
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Slide 7 PC Basics Storage Devices Removable media : disks that can be separated from their drives Most popular types are 5-1/4 inch optical disks Better Known as CD-ROMs and DVD-ROMs, or just CDs and DVDs. A typical PC system unit includes some kind of optical drive CD and DVD drives. CD-RW and DVD-RW drives can read and write to CDs and DVDs. DVD-RW drives are standard in most new computers Will likely be followed by Blu-Ray DVD drives.
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Slide 8 PC Basics System Components Other system unit components communicate with external devices: video display hardware – to the monitor sound hardware – to the speakers and microphone network interface hardware – to a network Note: Most of these components are now built in to the motherboard. Additional cards/devices can be added to upgrade your system. TV tuners Bluetooth receivers
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Slide 9 Chapter 2 A Bit About Bits Bits, Bytes, and Buzzwords Bit-related terminology Byte Kilobyte (KB) Megabytes (MB) Gigabytes (GB) Terabytes (TB) = 8 bits = 1 Thousand Bytes = 1 Million Bytes = 1 Billion Bytes = 1 Trillion Bytes (Note: not exact figures. 1kb=1024 bytes, 1mb=1024kb,etc)
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003+10-04-11+-+Chapter+2 - Chapter 2 Hardware Basics:...

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